`toFirestore` inside `globalFirestoreOptions.converter` is never called about vuefire

[mrleblanc101]

It works if I use .withConverter instead.
Exemple:

const addDefaultFields = {
    toFirestore(docData: DocumentData): DocumentData {
        console.log('test 1');
        return {
            created_at: serverTimestamp(),
            ...docData,
        }
    },
    fromFirestore(snapshot: QueryDocumentSnapshot, options: SnapshotOptions): DocumentData {
        console.log('test 2');
        const data = firestoreDefaultConverter.fromFirestore(snapshot)!;
        return data;
    },
};

...

async function addProject(option: Project) {
    const project = await addDoc(collection(db, 'projects').withConverter(addDefaultFields), {
        name: option.name,
        user: user.value!.uid,
    })
    return { id: project.id, name: option.name };
}